Superfish introduction and removal tools and model numbers for Lenovo notebooks that suffered from having Superfish preloaded:
E-Series: E10-30
Flex-Series: Flex2 14, Flex2 15, Flex2 14D, Flex2 15D, Flex2 14 (BTM), Flex2 15 (BTM), Flex 10
G-Series: G410, G510, G40-70, G40-30, G40-45, G50-70, G50-30, G50-45
M-Series: Miix2 - 8, Miix2 - 10, Miix2 - 11
S-Series: S310, S410, S415; S415 Touch, S20-30, S20-30 Touch, S40-70
U-Series: U330P, U430P, U330Touch, U430Touch, U540Touch
Y-Series: Y430P, Y40-70, Y50-70
Yoga-Series: Yoga2-11BTM, Yoga2-11HSW, Yoga2-13, Yoga2Pro-13
Z-Series: Z40-70, Z40-75, Z50-70, Z50-75
Removal tool from the manufacturer:
http://support.lenovo.com/us/en/product_security/superfish_uninstallInformation about Superfish:
http://www.zdnet.com/article/microsoft-updates-windows-defender-to-remove-superfish-infection/